[$] BTF, Rust, and the kernel toolchain

BPF Type Format (BTF),
BPF's debugging information format, has undergone rapid evolution to match
the evolving needs of BPF programs. José Marchesi spoke at Kangrejos about some
of that work — and how it could impact Rust, specifically. He discussed debug
information, kernel-specific relocations, and the planned changes to kernel
stack unwinding. Each of these will require some amount of work to fully
support in Rust, but preliminary signs look promising.